June 30,
2024

(unaudited)

December 31,

2023

Convertible notes (includes $1,300,000 and $1,228,000 past due)

$

1,476,000

$

1,332,000

Accrued interest (includes $900,000 and $794,000 past due)

900,000

794,000

Subtotal, including $2,200,000 and $2,022,000 past due, respectively

2,376,000

2,265,000

Convertible note discount

(74,000

)

(25,000

)

Balance on convertible notes, net of note discounts

$

2,302,000

$

2,101,000